CN112671179B - Miniature brush motor rotor winding shaping mold and application method thereof - Google Patents

Miniature brush motor rotor winding shaping mold and application method thereof Download PDF

Info

Publication number
CN112671179B
CN112671179B CN202110025029.5A CN202110025029A CN112671179B CN 112671179 B CN112671179 B CN 112671179B CN 202110025029 A CN202110025029 A CN 202110025029A CN 112671179 B CN112671179 B CN 112671179B
Authority
CN
China
Prior art keywords
sleeve
pressing block
winding
core sleeve
outer sleeve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110025029.5A
Other languages
Chinese (zh)
Other versions
CN112671179A (en
Inventor
张青青
郭路宝
李立杰
马爱霞
黄非非
陈文博
王宪云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
707th Research Institute of CSIC
Original Assignee
707th Research Institute of CSIC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 707th Research Institute of CSIC filed Critical 707th Research Institute of CSIC
Priority to CN202110025029.5A priority Critical patent/CN112671179B/en
Publication of CN112671179A publication Critical patent/CN112671179A/en
Application granted granted Critical
Publication of CN112671179B publication Critical patent/CN112671179B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility

Abstract

The invention relates to a shaping die for a rotor winding of a miniature brush motor and a use method thereof, wherein the die comprises an upper core sleeve, a lower core sleeve, an outer sleeve, an upper pressing block and a lower pressing block; the lower end of the upper core sleeve and the upper end of the lower core sleeve are respectively provided with an annular slot which is respectively inserted and assembled with the upper end part and the lower end part of the rotor shaft sleeve, and the outer annular surface of the upper core sleeve and the outer annular surface of the lower core sleeve form a winding inner limit surface; the outer sleeve is concentrically sleeved outside the rotor shaft sleeve, and the inner annular surface of the outer sleeve forms an outer limit surface of the winding; the upper pressing block is pressed between the outer annular surface of the upper core sleeve and the inner annular surface of the outer sleeve from top to bottom, and the lower end surface of the upper pressing block is contacted with the upper end of the winding to be shaped; the lower pressing block is pressed between the outer annular surface of the lower core sleeve and the inner annular surface of the outer sleeve from bottom to top, and the upper end surface of the lower pressing block is contacted with the lower end of the winding to be shaped; the upper pressing block is pressed down to the upper limit table top to be contacted with the upper end of the outer sleeve, and the lower pressing block is pressed up to the lower limit table top to be contacted with the lower end of the outer sleeve, so that the central press winding reaches a specific size. The invention avoids over-shaping and out-of-place shaping.

Description

Miniature brush motor rotor winding shaping mold and application method thereof
Technical Field
The invention belongs to the field of torque motor assembly, and particularly relates to a miniature brush motor rotor winding shaping die and a using method thereof.
Background
The motor rotor winding is an important component of the motor, and the winding 102 is matched with the rotor core 104 to form a regular magnetic field when current exists, so that the special function of the motor is realized. The brush direct current torque motor is an important component part in the motor, and the miniature brush motor occupies an important position in the miniature motor, thereby providing special application for a plurality of fields. The size of the medium-sized and large-sized motor is larger, and the space size requirement of each component is not strict. The whole size of the miniature motor is smaller, and the design size of the whole motor is strictly limited, so that the space requirements of each component part are more strict, and the space size is basically not abundant. The rotor winding is formed by winding enameled wires, and a large margin space is reserved in the wound coil, so that the space of the wound coil is fully utilized to realize the performance of the whole motor. Shaping of the windings is therefore required, taking up internal space. However, due to the small size of the miniature motor and the thin enameled wire, the enameled wire is extremely easy to be damaged in the winding shaping process, so that the yield is reduced or the motor has hidden quality trouble, and even the motor cannot be manufactured
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a miniature brush motor rotor winding shaping die and a use method thereof, and the miniature brush motor rotor winding shaping die can avoid the condition that enameled wires are damaged due to insufficient size or excessive shaping during winding shaping.
The above object of the present invention is achieved by the following technical solutions:
a miniature brush motor rotor winding plastic mould, its characterized in that: comprises an upper core sleeve, a lower core sleeve, an outer sleeve, an upper pressing block and a lower pressing block;
the lower end of the upper core sleeve and the upper end of the lower core sleeve are respectively provided with an annular slot, and form an inserting assembly with the upper end part and the lower end part of the rotor shaft sleeve respectively, and the outer annular surface of the upper core sleeve and the outer annular surface of the lower core sleeve form a winding inner limit surface; bolt penetrating holes are formed in the center of the upper core sleeve and the center of the lower core sleeve, and the upper core sleeve, the lower core sleeve and the rotor shaft sleeve are fixedly connected along the axial direction through penetrating fastening bolts;
the outer sleeve is concentrically sleeved outside the rotor shaft sleeve, the inner annular surface of the outer sleeve forms a winding outer limit surface, and a winding shaping space is formed between the winding inner limit surface and the winding outer limit surface;
the upper pressing block and the lower pressing block are annular pressing blocks, an upper limit table top and a lower limit table top are respectively arranged on the upper pressing block and the lower pressing block, the upper pressing block is pressed into an annular space between the outer annular surface of the upper core sleeve and the inner annular surface of the outer sleeve from top to bottom, and the lower end surface of the upper pressing block is contacted with the upper end of the winding to be shaped; the lower pressing block is pressed in an annular space between the outer annular surface of the lower core sleeve and the inner annular surface of the outer sleeve from bottom to top, and the upper end surface of the lower pressing block is contacted with the lower end of the winding to be shaped; the upper pressing block is pressed down to the upper limit table top to be contacted with the upper end of the outer sleeve, and the lower pressing block is pressed up to the lower limit table top to be contacted with the lower end of the outer sleeve, so that the central press winding reaches a specific size.
The application method of the miniature brush motor rotor winding shaping mold is characterized by comprising the following steps of: the shaping die for the miniature brush motor rotor winding comprises the following steps:
step 1, an upper core sleeve and a lower core sleeve are sleeved into a rotor shaft sleeve and are respectively assembled with the upper end part and the lower end part of the rotor shaft sleeve in an inserting way;
step 2, a bolt penetrates through the bolt penetrating hole of the upper core sleeve, the central hole of the rotor shaft sleeve and the bolt penetrating hole of the lower core sleeve, and a nut is screwed on the bolt, so that the upper core sleeve and the lower core sleeve are fixedly connected with the rotor shaft sleeve along the axial direction;
step 3, loading the commutator into an outer sleeve from bottom to top in an upward direction of the end face of the commutator in the rotor winding;
step 4, respectively loading the upper pressing block and the lower pressing block into a space between the upper core sleeve and the outer sleeve and a space between the lower core sleeve and the outer sleeve;
step 5, pressing an upper pressing block on the hydraulic device to enable the upper limiting table top to be in contact with the upper end of the outer sleeve, and pressing a lower pressing block to enable the lower limiting end face to be in contact with the lower end of the outer sleeve;
and 6, removing the upper pressing block, the lower pressing block, the outer sleeve, the upper mandrel and the lower mandrel, and taking out the motor rotor.
The invention has the advantages and positive effects that:
1. the invention adopts the upper core sleeve and the lower core sleeve to be coaxially and fixedly connected with the rotor shaft cylinder, the outer annular surfaces of the two core sleeves are used for limiting the size of the shaping inner ring of the rotor winding, and simultaneously, the outer sleeve is used for limiting the size of the shaping outer ring of the rotor winding through the inner annular surface of the outer sleeve.
2. According to the invention, the upper and lower pressing blocks are adopted to apply shaping acting force to the rotor winding, and after the upper limit table top and the lower limit table top are respectively contacted with the upper end face of the outer sleeve and the lower end face of the outer sleeve, shaping in-place limitation is realized, over shaping and out-of-place shaping are avoided, shaping in-place size is ensured to be consistent with design size, and the qualification rate of products is enabled to reach hundred percent.
Drawings
FIG. 1 is a diagram of a structure of a rotor of a brushed motor;
FIG. 2 is a cross-sectional view of a motor rotor load winding shaping mold;
fig. 3 is a view showing the whole structure of the winding shaping die.
Detailed Description
The invention will now be described in further detail by way of specific examples, which are given by way of illustration only and not by way of limitation, with reference to the accompanying drawings.
The invention provides a miniature brush motor rotor winding shaping die which is scientific and reasonable in design and does not damage enameled wires and a use method thereof.
The invention adopts the technical scheme that:
the size of the shaped winding is adjusted by controlling the compaction coefficient of the enameled wire, so that the enameled wire is prevented from being damaged due to excessive compaction, and the motor is prevented from being influenced by the oversized winding. The invention designs a winding shaping die, which controls the compression coefficient, limits the space after shaping and realizes the shaping of windings.
A coefficient ζ is set for the winding shaping compaction degree, which represents the compaction condition of the winding. Theoretical calculation of volume S occupied by winding enameled wire 1 Actual winding occupation volume S 2 。
The relationship between the three values is:
Figure BDA0002889945030000031
S 1 the calculation can be carried out according to the wire diameter and the number of turns used by the motor winding, and the calculated value is a fixed value. S is S 2 Is the target to be achieved after shaping the winding and this value affects the winding size after shaping. ζ is the compaction factor of the shaping. A smaller zeta represents a larger space between enamelled wires in the winding, a smaller compression between enamelled wires and a smaller damageThe method comprises the steps of carrying out a first treatment on the surface of the The larger ζ represents the smaller space between the enamelled wires in the winding, the larger compaction between the enamelled wires is, and the enamelled wires may be damaged.
The maximum value of the packing fraction ζ is different for different shapes of enamel wire (e.g., round, flat). When the enameled wires are round, each enameled wire adopts the most compact arrangement, and the theoretical calculation value of ζ is
Figure BDA0002889945030000032
When the enameled wires are flat, each enameled wire adopts the most compact arrangement, and the theoretical calculation value of ζ is 1. The winding is in a loose state at first, and the loose enameled wire is extruded into a specific space by adopting a compaction shaping method, so that the theoretical maximum value of zeta cannot be reached in the actual shaping process, otherwise, the enameled wire is seriously damaged.
From the above analysis, it is found that the smaller ζ is, the smaller the damage to the winding is, and the smaller ζ is, the more advantageous the processing is from the processing angle. However, the size of the micro motor is limited, and it is necessary to realize the performance of the motor in a smaller space, and the larger the motor design angle ζ, the smaller the size is. It can be seen that the two are contradictory. So ζ is not exactly the same in different motors. Generally, the zeta is in the range of 0.2-0.5, and the shaping is basically free from damage to the enameled wire. However, ζ requires further calculation and verification in order to obtain a specific motor.
When the motor is applied, the sizes of the inner circle and the outer circle of the winding are limited according to the actual size requirement of the motor. And then referring to the compaction coefficient zeta, a compaction die in the axial direction of the winding is made. In order to avoid excessive compaction of the windings, a size limiting module is made. A scientific and reasonable miniature motor winding shaping die is as follows:
a limiting core sleeve is respectively arranged in the windings at two ends, namely an upper core sleeve 2 and a lower core sleeve 4, so that the windings are prevented from exceeding the size inwards in the shaping process; an outer sleeve 3 is arranged outside the winding to avoid the winding from exceeding the size outwards during shaping; two ends of the winding are respectively provided with a pressing block, namely an upper pressing block 1 and a lower pressing block 5, and the winding is pressed towards the center to reach a specific size. In the process, the outer sleeve is used as a size limiting module, so that the pressing block stops extruding the winding when contacting the outer sleeve during pressing.
The using method of the miniature motor winding shaping die comprises the following steps:
step 1, an upper core sleeve and a lower core sleeve are arranged in a rotor shaft sleeve 101 and are respectively assembled with the upper end part and the lower end part of the rotor shaft sleeve in an inserting way;
step 2, a bolt 6 is used for penetrating through a bolt penetrating hole of the upper core sleeve, a central hole of the rotor shaft sleeve and a bolt penetrating hole of the lower core sleeve, and a nut 7 is screwed on the bolt, so that the upper core sleeve and the lower core sleeve are fixedly connected with the rotor shaft sleeve along the axial direction;
step 3, loading the commutator 103 in the rotor winding into an outer sleeve from bottom to top in an upward direction;
step 4, respectively loading the upper pressing block and the lower pressing block into a space between the upper core sleeve and the outer sleeve and a space between the lower core sleeve and the outer sleeve;
step 5, pressing an upper pressing block on a hydraulic device to enable the upper pressing block to contact the upper end of the upper limit table top 1.1 and the upper end of the outer sleeve, and simultaneously pressing a lower pressing block to enable the lower limit end face 5.1 to contact the lower end of the outer sleeve;
and 6, removing the upper pressing block, the lower pressing block, the outer sleeve, the upper mandrel and the lower mandrel, and taking out the motor rotor.
In conclusion, damage to the winding during shaping can be avoided by reasonably designing the compaction coefficient zeta; the invention is suitable for the miniature brush motor with more strict space requirements, and the shaping yield is close to one hundred percent.
Although the embodiments of the present invention and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments and the disclosure of the drawings.

Claims (2)

1. A miniature brush motor rotor winding plastic mould, its characterized in that: comprises an upper core sleeve, a lower core sleeve, an outer sleeve, an upper pressing block and a lower pressing block;
the lower end of the upper core sleeve and the upper end of the lower core sleeve are respectively provided with an annular slot, and form an inserting assembly with the upper end part and the lower end part of the rotor shaft sleeve respectively, and the outer annular surface of the upper core sleeve and the outer annular surface of the lower core sleeve form a winding inner limit surface; bolt penetrating holes are formed in the center of the upper core sleeve and the center of the lower core sleeve, and the upper core sleeve, the lower core sleeve and the rotor shaft sleeve are fixedly connected along the axial direction through penetrating fastening bolts;
the outer sleeve is concentrically sleeved outside the rotor shaft sleeve, the inner annular surface of the outer sleeve forms a winding outer limit surface, and a winding shaping space is formed between the winding inner limit surface and the winding outer limit surface;
the upper pressing block and the lower pressing block are annular pressing blocks, an upper limit table top and a lower limit table top are respectively arranged on the upper pressing block and the lower pressing block, the upper pressing block is pressed into an annular space between the outer annular surface of the upper core sleeve and the inner annular surface of the outer sleeve from top to bottom, and the lower end surface of the upper pressing block is contacted with the upper end of the winding to be shaped; the lower pressing block is pressed in an annular space between the outer annular surface of the lower core sleeve and the inner annular surface of the outer sleeve from bottom to top, and the upper end surface of the lower pressing block is contacted with the lower end of the winding to be shaped; the upper pressing block is pressed down to the upper limit table top to be contacted with the upper end of the outer sleeve, and the lower pressing block is pressed up to the lower limit table top to be contacted with the lower end of the outer sleeve, so that the central press winding reaches a specific size.
2. A method of using the miniature brush motor rotor winding shaping mold of claim 1, comprising the steps of:
step 1, an upper core sleeve and a lower core sleeve are sleeved into a rotor shaft sleeve and are respectively assembled with the upper end part and the lower end part of the rotor shaft sleeve in an inserting way;
step 2, a bolt penetrates through the bolt penetrating hole of the upper core sleeve, the central hole of the rotor shaft sleeve and the bolt penetrating hole of the lower core sleeve, and a nut is screwed on the bolt, so that the upper core sleeve and the lower core sleeve are fixedly connected with the rotor shaft sleeve along the axial direction;
step 3, loading the commutator into an outer sleeve from bottom to top in an upward direction of the end face of the commutator in the rotor winding;
step 4, respectively loading the upper pressing block and the lower pressing block into a space between the upper core sleeve and the outer sleeve and a space between the lower core sleeve and the outer sleeve;
step 5, pressing an upper pressing block on the hydraulic device to enable the upper limiting table top to be in contact with the upper end of the outer sleeve, and pressing a lower pressing block to enable the lower limiting end face to be in contact with the lower end of the outer sleeve;
and 6, removing the upper pressing block, the lower pressing block, the outer sleeve, the upper mandrel and the lower mandrel, and taking out the motor rotor.
CN202110025029.5A 2021-01-08 2021-01-08 Miniature brush motor rotor winding shaping mold and application method thereof Active CN112671179B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110025029.5A CN112671179B (en) 2021-01-08 2021-01-08 Miniature brush motor rotor winding shaping mold and application method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110025029.5A CN112671179B (en) 2021-01-08 2021-01-08 Miniature brush motor rotor winding shaping mold and application method thereof

Publications (2)

Publication Number Publication Date
CN112671179A CN112671179A (en) 2021-04-16
CN112671179B true CN112671179B (en) 2023-04-28

Family

ID=75413793

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110025029.5A Active CN112671179B (en) 2021-01-08 2021-01-08 Miniature brush motor rotor winding shaping mold and application method thereof

Country Status (1)

Country Link
CN (1) CN112671179B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07184359A (en) * 1993-12-24 1995-07-21 Nikkiso Co Ltd Stator coil shaping apparatus
CN201126986Y (en) * 2007-12-17 2008-10-01 许晓华 Rotor insulation structure
CN104868667A (en) * 2015-06-08 2015-08-26 大连电机集团有限公司 Glue-pouring mold for motor stator winding

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003169434A (en) * 2001-11-30 2003-06-13 Toyota Motor Corp Method of fairing and fixing coil end of stator or rotor of rotating electric machine, and device for fairing and fixing coil end
JP2005137096A (en) * 2003-10-29 2005-05-26 Mitsuba Corp Commutator and its manufacturing method
JP2013192303A (en) * 2012-03-13 2013-09-26 Nissan Motor Co Ltd Stator coil shaping method and stator coil shaping device
CN203313005U (en) * 2013-06-03 2013-11-27 苏州工业职业技术学院 Motor stator winding end portion sizing die
CN203691096U (en) * 2013-12-31 2014-07-02 西安微电机研究所 Groove-less brush armature winding holder structure
AU2014101103A4 (en) * 2014-09-10 2014-10-09 Innuovo International Trade Co.,Ltd. Hengdian Group Shaping Mechanism for DC Rotor Coil
CN108667230B (en) * 2018-05-19 2020-05-08 芜湖翡叶动力科技有限公司 Motor stator coil shaping device
CN209299086U (en) * 2019-01-11 2019-08-23 黄河科技学院 Motor stator winding end shape adjusts tooling
CN111313646B (en) * 2020-04-01 2022-04-12 西安微电机研究所有限公司 Miniature coreless brushless motor resistant to rapid and wide temperature change environment and processing method
CN212163105U (en) * 2020-05-27 2020-12-15 康平科技(苏州)股份有限公司 Equipment tool for shaping rotor coil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07184359A (en) * 1993-12-24 1995-07-21 Nikkiso Co Ltd Stator coil shaping apparatus
CN201126986Y (en) * 2007-12-17 2008-10-01 许晓华 Rotor insulation structure
CN104868667A (en) * 2015-06-08 2015-08-26 大连电机集团有限公司 Glue-pouring mold for motor stator winding

Also Published As

Publication number Publication date
CN112671179A (en) 2021-04-16

Similar Documents

Publication Publication Date Title
US20070145854A1 (en) Motor
CN1421980A (en) Motor
US4663835A (en) Method of applying electric motor armature insulation
CN105225829B (en) Double-outer-lead-terminal coil winding machine and winding process
CN107770688B (en) Abnormal voice coil, winding device and method of abnormal voice coil
US6900573B2 (en) Rotor core lamination for a laminated rotor
CN110957866A (en) Flat wire twisting device for armature winding end part of flat wire motor
CN112671179B (en) Miniature brush motor rotor winding shaping mold and application method thereof
US20150207372A1 (en) Rotor for motor, motor having the same and method for manufacturing the motor
CA3127311A1 (en) Method for producing a helical body by way of compression of the helix
CN201204109Y (en) Combined high speed electro-magnet iron core
CN1089057A (en) A kind of resolver
CN207691646U (en) One kind has winding stator core to extrude mould
CN101685993B (en) Direct-current motor shell
WO2020151497A1 (en) Stator core molding method
CN209233599U (en) A kind of electrical motor wire embedding stator end safeguard structure
CN111371271B (en) Plastic package method for DDM stator and rotor
CN213783099U (en) Winding device for high-slot-fullness frameless linear motor coil
CN213484708U (en) Stator shaping device of micro-special motor
CN215791189U (en) Mould for manufacturing stator coil of coreless disk type motor
CN219740168U (en) Iron core assembly rule device
CN112421908A (en) Winding device and winding method for high-slot-fullness-rate frameless linear motor coil
CN210898692U (en) High-copper-content efficient motor stator capable of being automatically produced
CN202183308U (en) Press mounting mold of transformer coil
US20070278867A1 (en) Expoxy encapsulated stator

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant